$(function(){ 

//first hide the button div 
 $('div#rollover_container').hide(); 
//here set a hover to show roll on and roll off and while on access button div and slideDown and roll off slideUp() taking 4 seconds for both
 
$("div#homepage_rollover_btn").mouseover(
function () {
 $("div#rollover_container").fadeIn(500);
  }); 

$("div#rollover_container").mouseout(
 function () {
  $("div#rollover_container").fadeOut(500); 
  });

});